I'm slowly coming to realize that there isn't always much point in releasing freeware but keeping the source closed. As part of this realization, I have created a publicly accessible Subversion repository and added the source of two of my screensavers, GPULife and ChemicalBurn. They're both MIT licensed and contributions are welcome, although not expected. Maybe one of you can figure out why ChemicalBurn very occasionally gets into a routing loop....